.flex-row{
	display: flex;
	flex-direction: row;
}
.flex-column{
	display: flex;
	flex-direction: column;
}
.py10{
	padding-top: 10rpx;
	padding-bottom: 10rpx;
}
.py20{
	padding-top: 20rpx;
	padding-bottom: 20rpx;
}
.px10{
	padding-left: 10rpx;
	padding-right: 10rpx;
}
.px20{
	padding-left: 20rpx;
	padding-right: 20rpx;
}
.align-center{
	align-items: center;/* 垂直居中 */
}
.justify-center{
	justify-content: center;/* 水平居中 */
}

.border-bottom-line{
	/* solid 实线  dashed 虚线 */
	border-bottom: 2rpx solid #999;
}